Infiniti FX35, FX50 (S51). Manual — part 961
EM-144
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ35HR]
SERVICE DATA AND SPECIFICATIONS (SDS)
*
1
: Cam wear limit
*
2
: Total indicator reading
VALVE LIFTER
Unit: mm (in)
VALVE CLEARANCE
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
AVAILABLE VALVE LIFTER
Unit: mm (in)
Items
Standard
Valve lifter outer diameter
33.980 - 33.990 (1.3378 - 1.3382)
Valve lifter hole diameter
34.000 - 34.016 (1.3386 - 1.3392)
Valve lifter clearance
0.010 - 0.036 (0.0004 - 0.0014)
Items
Cold
Hot* (reference data)
Intake
0.26 - 0.34 (0.010 - 0.013)
0.304 - 0.416 (0.012 - 0.016)
Exhaust
0.29 - 0.37 (0.011 - 0.015)
0.308 - 0.432 (0.012 - 0.017)
Identification (stamped) mark
Thickness
788
7.88 (0.3102)
790
7.90 (0.3110)
792
7.92 (0.3118)
794
7.94 (0.3126)
796
7.96 (0.3134)
798
7.98 (0.3142)
800
8.00 (0.3150)
802
8.02 (0.3157)
804
8.04 (0.3165)
806
8.06 (0.3173)
808
8.08 (0.3181)
810
8.10 (0.3189)
812
8.12 (0.3197)
814
8.14 (0.3205)
816
8.16 (0.3213)
818
8.18 (0.3220)
820
8.20 (0.3228)
822
8.22 (0.3236)
824
8.24 (0.3244)
826
8.26 (0.3252)
828
8.28 (0.3260)
830
8.30 (0.3268)
832
8.32 (0.3276)
834
8.34 (0.3283)
836
8.36 (0.3291)
838
8.38 (0.3299)
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-145
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ35HR]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
Cylinder Head
INFOID:0000000005245189
CYLINDER HEAD
Unit: mm (in)
VALVE DIMENSIONS
Unit: mm (in)
840
8.40 (0.3307)
Identification (stamped) mark
Thickness
SEM758G
Items
Standard
Limit
Head surface distortion
Less than 0.03 (0.0012)
0.1 (0.004)
Normal cylinder head height “H”
126.3 - 126.5 (4.97 - 4.98)
—
PBIC0924E
Valve head diameter “D”
Intake
36.6 - 36.9 (1.441 - 1.453)
Exhaust
30.2 - 30.5 (1.189 - 1.201)
Valve length “L”
Intake
97.13 (3.8240)
Exhaust
94.67 (3.7272)
Valve stem diameter “d”
Intake
5.965 - 5.980 (0.2348 - 0.2354)
Exhaust
5.962 - 5.970 (0.2347 - 0.2350)
SEM188
EM-146
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ35HR]
SERVICE DATA AND SPECIFICATIONS (SDS)
VALVE GUIDE
Unit: mm (in)
VALVE SEAT
Unit: mm (in)
Valve seat angle “
α
”
Intake
45
°
15
′
- 45
°
45
′
Exhaust
Valve margin “T”
Intake
1.1 (0.043)
Exhaust
1.3 (0.051)
Valve margin “T” limit
0.5 (0.020)
Valve stem end surface grinding limit
0.2 (0.008)
Items
Standard
Oversize (Service) [0.2 (0.008)]
Valve guide
Outer diameter
10.023 - 10.034 (0.3946 - 0.3950)
10.223 - 10.234 (0.4025 - 0.4029)
Inner diameter (Finished size)
6.000 - 6.018 (0.2362 - 0.2369)
Cylinder head valve guide hole diameter
9.975 - 9.996 (0.3927 - 0.3935)
10.175 - 10.196 (0.4006 - 0.4014)
Interference fit of valve guide
0.027 - 0.059 (0.0011 - 0.0023)
Items
Standard
Limit
Valve guide clearance
Intake
0.020 - 0.053 (0.0008 - 0.0021)
0.08 (0.0031)
Exhaust
0.030 - 0.056 (0.0012 - 0.0022)
0.09 (0.0035)
Projection length “L”
12.6 - 12.8 (0.496 - 0.504)
SEM950E
Items
Standard
Oversize (Service) [0.5 (0.02)]
Cylinder head seat recess diameter “D”
Intake
38.000 - 38.016 (1.4961 - 1.4967)
38.500 - 38.516 (1.5157 - 1.5164)
Exhaust
31.600 - 31.616 (1.2441 - 1.2447)
32.100 - 32.116 (1.2638 - 1.2644)
Valve seat outer diameter “d”
Intake
38.097 - 38.113 (1.4999 - 1.5005)
38.597 - 38.613 (1.5196 - 1.5202)
Exhaust
31.680 - 31.696 (1.2472 - 1.2479)
32.180 - 32.196 (1.2669 - 1.2676)
Valve seat interference fit
Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
0.064 - 0.096 (0.0025 - 0.0038)
PBIC2745E
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-147
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ35HR]
C
D
E
F
G
H
I
J
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EM
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*
1
: Diameter made by intersection point of conic angles “
α
1” and “
α
2”
*
2
: Diameter made by intersection point of conic angles “
α
2” and “
α
3”
*
3
: Machining data
VALVE SPRING
Cylinder Block
INFOID:0000000005245190
CYLINDER BLOCK
Unit: mm (in)
Diameter “d1”*
1
Intake
34.6 (1.362)
Exhaust
27.7 (1.091)
Diameter “d2”*
2
Intake
35.9 - 36.4 (1.413 - 1.433)
Exhaust
29.3 - 29.8 (1.154 - 1.173)
Angle “
α
1”
Intake
60
°
Exhaust
60
°
Angle “
α
2”
Intake
88
°
45
′
- 90
°
15
′
Exhaust
88
°
45
′
- 90
°
15
′
Angle “
α
3”
Intake
120
°
Exhaust
120
°
Contacting width “W”*
3
Intake
1.0 - 1.4 (0.039 - 0.055)
Exhaust
1.2 - 1.6 (0.047 - 0.063)
Height “h”
Intake
5.9 - 6.0 (0.232 - 0.236)
5.05 - 5.15 (0.1988 - 0.2028)
Exhaust
5.9 - 6.0 (0.232 - 0.236)
4.95 - 5.05 (0.1949 - 0.1988)
Depth “H”
6.0 (0.236)
Items
Standard
Free height
43.85 mm (1.7264 in)
Installation height
37.00 mm (1.4567 in)
Installation load
166 - 188 N (16.9 - 19.2 kg, 37 - 42 lb)
Height during valve open
26.8 mm (1.055 in)
Load with valve open
502 - 566 N (51.2 - 57.7 kg, 113 - 127 lb)
Squareness
1.9 mm (0.075 in)
Surface flatness
Standard
Less than 0.03 (0.0012)
Limit
0.1 (0.004)
Main bearing housing inner diameter
Standard
69.993 - 70.017 (2.7556 - 2.7566)
JPBIA1050GB
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